[2003stang34]

my son has a 03 mustang 3.8 v6 auto and he needs a motor because a local tire+lube chain store forgot to screw on his oil filter and after all the oil ran out it spun a rod..so i'm contemplateing helping him change the motor,,my questions are..just how hard would it be? any issues to watch for or parts ya don't need to remove?will the wireing harnes just unplug at the main conectors and then stay with the motor? does this one come out the top or bottom,,i've changed motors before and have the tools for the job just nothing this new.sorry for all the questions but i like to do my homework before i take the test.any help would be appreicated

thanks in advance

03tang